单项选择题


A．estimated
B．established
C．suggested
D．believed
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单项选择题
The distinct and typical pattern of responses is produced by______.
A．the autonomic nervous system
B．the voluntary nervous system
C．the brain's motor cortex
D．the brain's hypothalamus
单项选择题
Scientists discovered that people's emotions are______.
A．controlled by their facial expression
B．influenced by their facial expression
C．identical with their facial expression
D．contrary to their facial expression
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